Mandy Moore has had us hooked since "Candy." The bubbly pop star first burst onto the scene in 1999 with the release of her hit song, and since then, she's made an impressive transition to acting, from her leading role in Nicholas Sparks's A Walk to Remember to her award-winning performance on This Is Us. Along with her ever-changing career, the 35-year-old has switched up her fashion sense (and hair color!) more times than we can count. Keep reading to see Mandy go from a teenage dream to a woman in charge.